Car door



Sept. 4, 1923.

S. H. LOVETT CAR DOOR Filed Nov. 2'7. 1922 Ewe/Afar? Q WM Patented Sept. 4, 1923.

UNl'EED STATES:

STEPHEN H. LOVETT, OF MILES CITY, MONT-ANA,

can noon.

Application filed November 27, 1922. Serial No. 603,675.

T 0 all whom it may concern Be it known that 1, STEPHEN H. Lovn'r'r, a citizen of the United States of America, residing at Miles City, in the county of Custer and State of Montana, have invented certain new and useful Improvements in Car Doors which is an improvement on my United States Patent No. 1,378,475, dated May 17, 1921, do hereby declare that the following is a full, clear, and exact description of the same.

The invention has relation to closures for box cars in which a commodity is hauled in bulk and specifically considered, the invention relates to freight car doors of the type which are mounted to open and close bya tilting or rocking movement.

The invention relates more particularly to the means for sustaining the wearand for preventing displacement of the door and holding the same in proper position in either open or closed position or at any intermediate position.

The drawings illustrate a bodiment of the invention. to be understood that in adapting the same to meet different conditions, various changes in the form, proportion, and minor details of construction may be resorted to without departing from the nature of the invention as claimed hereinafter.

By referring to. the accompanying drawmgs,

Figure 1 is a fragmentary side elevation of a freight car equipped with the improved tilting door.

Figure 2 is a sectional detail taken on the line 2-2 of Fig. 1,

Fig. 3 is a longitudinal section on the line of Fig. 1,

Fig. 4 is a vertical section on the line 4--4 of Fig. 1.

Fig. 5 is a perspective view of the contrivance used to secure the door in any position intermediate. closed and 0 en positions.

F ig. 6 is a sectional detail of the head of the door.

Referring to the drawings in which corresponding and like parts are referred to in Igreferre d emthe following description and indicated in the several views of the drawings by like reference characters,

The numeral 1 designates the side, of a freight car provided with the usual open ing 2, reinforced at its peripheral edges by a framing 3 and designed to be normally owever, it isclosed by a door 4.- Adjacent the lower edge of the opening 2 and extending a predetermincd length along the car wall is an angleshaped member 5 which has its bearing surface provided with a metallic angle-hart suitably fastened theretoas at 7 and" deigned to offer ahard and smooth Surface capable of standing the wear of the tilting door 4. y

The pivoted corner of the door -'4 is reinforced by a casing or reinforcing member- 8 housing the door corner and securely fastened thereto. This reinforeingmeniber 8 is preferably countersunk'intofthe door as clearly shown in Figure 2 of the drawing. A pivot bolt 9 having its head lO securely fastened as at 11 to the inner wall-of the car, extends through the same, the framing 3 and the door 4 at its reinforced cor-ner- 8 The outer and free end of thebolt Qissuitably journalled-in a bearing 12 and retained therein by a cotter pin 13 engaging the bolt. The bearing member 12 is Z-shaped and is removably but securely anchored to the ear wall as'at 14. The reinforcing member 8 has its corner rounded as at 15 so that the door 4 on pivoting on its fulcrum 9 will always have a portion bearing against and supported by the angle-bar "6.

When the door 4 has been opened and lies in the horizontal position dotted in Figure 1 its side is supported by the angle bar 6 and its top edge is adapted to butt against a stop bar 16 fastened as at 17 to the side of the car.

The lower end of the door 4 is suitably held in normal position by means of a clamp 18 loosely engaging the same and removably anchored to the car wall by a fingered nut 19 engaging the threaded end of a bolt. The door may be manipulated through a pair of handle bars 20 and 21 provided adjacent the lower end thereof. The door 4 may also be locked in closed or opened position or in any position intermediate these two by means of the following arrangement.

A vertical arm 22 has an end 23 of hook form which is secured to the car side by bolts or screws. The arm 22 extends vert1- cally downward bridging over the space allotted for the movements of the door 4 and has its lower end ofiset as at 24 and anchored to the car wall underneath the rail 5 by means of a bolt and winged nut 25 through which it may be suitably tightened orreleased. A tightening or looking bar 26 extends crosswise of the door 4 and has one of its ends secured by means of a bolt and winged-nut arrangement 27 to the vertical arm 22. The opposite end of the locking bar 26 is offset as at 28 and anchored to the car wall 1 as at 29.

When a freight car equipped with this improved tilting or rocking door is to be opened, the winged'nut 25 is unscrewed in order to release the grip of the locking bar 26 from the door 4:. The handle bars and 21 are then gripped and the handle 20 being forced upwaros while, the handle 2]. is forced downwards, the door 4; is pivoted on its fulcrum 9 when it will fall along the angle-bar 6 and have its top abutting the vertical bar 16.

'as a brake to retard such movement.

It is understood that many changes could be made in the structure of the door within the scope of the appended claim.

What I claim is:

In combination a wall having an opening therethrough, a door to close said opening mounted to move from closed to open position about a horizontal pivot and in a plane parallel to said wall a bar spaced from said wall and overlying the path of movement of said door, said bar being secured at one end to said wall, and means engaging the other end of said bar and operable to move said bar toward said wall to frictionally engage said door in its movement to. the opening position.

STEPHEN H. LOVETT. 

